t1 t3
參數(shù)資料
型號(hào): EVAL-AD7660CBZ
廠商: Analog Devices Inc
文件頁數(shù): 7/20頁
文件大小: 0K
描述: BOARD EVALUATION FOR AD7660
標(biāo)準(zhǔn)包裝: 1
系列: PulSAR®
ADC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 100k
數(shù)據(jù)接口: 串行,并聯(lián)
輸入范圍: ±VREF
在以下條件下的電源(標(biāo)準(zhǔn)): 200mW @ 100kSPS
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7660
已供物品:
相關(guān)產(chǎn)品: AD7660ASTZ-ND - IC ADC 16BIT UNIPOLAR 48-LQFP
AD7660ASTZRL-ND - IC ADC 16BIT UNIPOLAR 48LQFP
AD7660ACPZRLTR-ND - IC ADC 16BIT UNIPOLAR 48LFCSP
REV. D
AD7660
–15–
PREVIOUS
CONVERSION
t1
t3
t12
t13
t4
CS = 0
CNVST,
RD
BUSY
DATA BUS
Figure 15. Slave Parallel Data Timing for Reading
(Read during Convert)
SERIAL INTERFACE
The AD7660 is configured to use the serial interface when the
SER/
PAR is held HIGH. The AD7660 outputs 16 bits of data,
MSB first, on the SDOUT pin. This data is synchronized with
the 16 clock pulses provided on the SCLK pin.
MASTER SERIAL INTERFACE
Internal Clock
The AD7660 is configured to generate and provide the serial data
clock SCLK when the EXT/
INT pin is held LOW. The AD7660
also generates a SYNC signal to indicate to the host when the
serial data is valid. The serial clock SCLK and the SYNC signal
can be inverted if desired. The output data is valid on both the
rising and falling edge of the data clock. Depending on RDC/
SDIN input, the data can be read after each conversion or during
the following conversion. Figures 16 and 17 show the detailed timing
diagrams of these two modes.
t3
BUSY
CS, RD
CNVST
SYNC
SCLK
SDOUT
t28
t29
t14
t18
t19
t20
t21
t24
t26
t27
t23
t22
t16
t15
12
3
14
15
16
D15
D14
D2
D1
D0
X
EXT/
INT = 0
RDC/SDIN = 0
INVSCLK = INVSYNC = 0
t25
t30
Figure 16. Master Serial Data Timing for Reading (Read after Convert)
EXT/
INT = 0
RDC/SDIN = 1
INVSCLK = INVSYNC = 0
t3
t1
t17
t14
t19
t20 t21
t24
t26
t25
t27
t23
t22
t16
t15
D15
D14
D2
D1
D0
X
12
3
14
15
16
t18
BUSY
CS, RD
CNVST
SYNC
SCLK
SDOUT
Figure 17. Master Serial Data Timing for Reading (Read Previous Conversion during Convert)
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